How long will a dog be in heat?

Answer 1

Virtually all breeds have two oestrus cycles each year. Initially, the vulva swells and within a day there is a clear discharge, which becomes tinged with blood the next day. This discharge increases in intensity and then slowly diminishes, ending after about ten days. During this time the female becomes more alert and urinates frequently, leaving signals of her impending willingness to mate. Ovulation takes place soon after the discharge has stopped. Only now will the female accept mating. Hormonal changes occur regardless of whether a female is pregnant, which is why there is no simple blood or urine tests to confirm impending motherhood.

Answer 2

They are in heat when they are ready to reproduce. You may notice that she is red and swollen "back there" and that she is interested in escaping the house or yard. Unless you are ready for puppies, you will either need to have her spayed where she can never have puppies, or make sure she is kept away from male dogs.

Answer 3

Typically the entire heat cycle will last around three weeks. This will vary some from dog to dog.